Shaft-bearing lubricator.



A. P. WIGHT.

SHAFT BEARING LUBRICATOR.

APPucATmN man AUG.2,1916.

Patented June 5, 1917.

i l l l I P I ZM" ALB-Ion P. wiet-IT, or WAKEFELI'D", MASSACHUSETTS.

SHAFT-BEARING LUBRICATOR.

Specification of Letters Patent.

Patented June 5, lair.

Application tied August a, i916. serial No. iiaesa To all fio/wm it may concern:

Be it known thatl, Aniston P. livrer-rr, a citizen of the United States, residing at lVakefield, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Shaft-Bearing Lubricators, of which the following is a specification.

This invention relates to a bearing for a horizontal shaft, provided with a lubricator adapted to automatically supply oil to the portion of a shaft which contacts with a bearing, while the shaft is rotating, and to retain the o'il when the shaft is at rest, said lubricator including an inverted bottle in which oil is normally confined by atmospheric pressure, and from which it is permitted to flow only when the shaft is in motion, and an oil feeding rod extending from the bottle to the shaft.

The invention is embodied in the im proved bottle-holding and rod-guiding attachment hereinafter described and claimed.

Of the accompanying drawings forming a part of this specification:

4Figure 1 represents a transverse section of a shaft bearing, and a4 shaft supported thereby, and a side elevation of an. attachment embodying my invention, the inverted bottle, and the oil-feeding rod therein being shown in elevation;

Fig. 2 represents a view similar to a portion of F ig. 1, showing the inverted bottle and the bottle-holding and rod-guiding attachment in section;

F ig. 3 represents a section on line of Fig. 1, the attachment and bottle being shown in elevation;

Fig. l represents a section on line 4 4 of Fig. 2.

The same reference characters indicate the same or similar parts in all the views.

In the drawings, a represents a horizontal shaft, and D represents the shaft supporting portion of a bearing in which the shaft rotates, the bearing as here shown being open and the upper portion of the shaft being eX- posed.

12 represents a cap, which as here shown is formed to rest upon the bearing portion Z) and is separated therefrom to form a space or chamber for the purpose of confining a charge of grease. I desire it to be understood however that the cap 12 may be in contact with the shaft in case the cap is not used to confine a charge of grease.

The' top 14 of the cap, which may be removable, is provided with an orifice 15.

16 represents an inverted .glass bottle havingv a" contracted neck 16a'. 17 represents an elongated outlet tube having an air-tight connection with the neck, by means of an annular cork packing or stopper 18 through which the outlet tube passes. The lower end of the tube projects below the neck of the oil cup' into the orifice 15, so thatthe cup may be detachably applied to the bearing, a shoulder 19 being provided to rest on the top 14.

20 yrepresents an elongated rod which is loosely inserted in the tube 15,y the interna-l diameter of the tube and the diameter of the rod being such thata narrow crevice is formed between the rod and the inner surface of the tube. The lower end of the rod rests loosely on the shafta,

l/Vhen the shaft is rotating it imparts slight lateral or vibrating movements to the rod 20,.th'ese movements permitting air to rise and oil to descend through the crevice between the rod and the tube, the entering air displacing an equivalent bulk of oil.

l/Vhen the shaft is at rest oil is retained in the cup and its outlet by atmospheric pressure, the cup having no inlet for air eXcepting through the tube 15.

The shoulder 19 on the tube 17 limits the entrance of the lower end of the tube into the opening 15 in the upper portion of the bearing, so that, while the tube projects sufficiently into the opening to be firmly supported in an upright position, it is prevented from touching the shaft (a. The tube 17 is provided above the shoulder 19 with an upwardly facing annular flange 19a forming a seat for the lower end of the stopper 1S, and supporting the stopper against downward movement on the tube when the bottle neck is being forced upon the stopper. The tube 17 may be provided with means, preferably provided by upsetting its upper end to form a bur 17a, for preventing the removal of the stopper from the tube when the bottle is being removed from the stopper. The tube 17 and the stopper 1S engaged therewith as described, constitutes a bottle-holding and rod-guiding attachment for a. bearing the upper portion of which is provided with an orifice 15. Said attachment is adapted to be quickly and easily engaged with and removed from the bearing, and the inverted bottle is adapted to be quickly and easily engaged with and` removed from the stopper, by runskilled operatives, there being no screw-threads liableto be crossed and mutilated by carelessmanipuy tube adapted to be inserted in a vertical opening in the upper portion of the bearing, and provided with an external stop shoulder limiting the entrance of the tube into said opening, and with an upwardly facing annular stopper seat above said shoulder, the tube being removably supported in an upright position by the bearing, and a compressible annular stopper surrounding the upper portion of the tube vand contacting at its lower end with said seat, the stopper being adapted to have an air and oil tight fit in the neck of an inverted bottle, and being supported by said seat against pressure exertedr in forcing the bottle neck upon the stopper, While the tube when engaged With and is adapted to guide a loose elongated oilfeeding rod.

2. A bottle-holding and feed rod-guiding attachment for a shaft bearing, comprising a tube adapted to be inserted in a vertical opening in the upper portion of the bearing, and provided with an external stop shoulder limiting the entrance of the tube into said opening7 and with an upwardly facing annular stopper seat above said-shoulder, the tube being removably supported in an uprightV position by the bearing, and a compressible annular stopper surrounding the upper portion of the tube and contacting at its lower end with said seat, the stopper being adapted to have an air and oil tight .fit in the neck of an inverted bottle, and

being supported by said seat against pressure exerted in forcing the bottle neck upon the stopper, while the tube when engaged with the bearing supports the stopper and bottle and is adapted to guide a'loose elongated oil-feeding rod, the tube being provided wth means whereby removal of the stopper from the tube by the removal of the bottle from the stopper, is prevented.

In testimony whereof IV have afliXed my signature.

ALnioN' P. wronr.

Copies of this patent may be obtainedifor five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

